The iambic trimeter derives its name from its essential shape, which is three metrical units (hence trimeter) which are each basically iambic in form. The iambic metron has the following shape (where the x is an anceps, the - is a longum, and the u is a brevis):
Hence, reversing the current running though a wire will have the affect of reversing the direction of the magnetic force at a point some distance away from the wire. The affect that this has on the overall magnetic field depends on the shape of the wire.
Answers. Best Answer: The following is in relation to an electromagnet, but generally applies to magnetic fields generated by electric current. The magnetic field is proportional to the current in amps and the number of turns of the conductor about the core (ampere-turns).nswers. Best Answer: The following is in relation to an electromagnet, but generally applies to magnetic fields generated by electric current. The magnetic field is proportional to the current in amps and the number of turns of the conductor about the core (ampere-turns).